A Secure Trust Establishment Scheme for Wireless Sensor Networks

Title
A Secure Trust Establishment Scheme for Wireless Sensor Networks
Author(s)
김성원파루남승엽
Issue Date
201401
Publisher
MDPI AG
Citation
SENSORS, v.14, no.1, pp.1877 - 1897
Abstract
Trust establishment is an important tool to improve cooperation and enhance security in wireless sensor networks. The core of trust establishment is trust estimation. If a trust estimation method is not robust against attack and misbehavior, the trust values produced will be meaningless, and system performance will be degraded. We present a novel trust estimation method that is robust against on-off attacks and persistent malicious behavior. Moreover, in order to aggregate recommendations securely, we propose using a modified one-step M-estimator scheme. The novelty of the proposed scheme arises from combining past misbehavior with current status in a comprehensive way. Specifically, we introduce an aggregated misbehavior component in trust estimation, which assists in detecting an on-off attack and persistent malicious behavior. In order to determine the current status of the node, we employ previous trust values and current measured misbehavior components. These components are combined to obtain a robust trust value. Theoretical analyses and evaluation results show that our scheme performs better than other trust schemes in terms of detecting an on-off attack and persistent misbehavior.
URI
http://hdl.handle.net/YU.REPOSITORY/33562http://dx.doi.org/10.3390/s140101877
ISSN
1424-8220
Appears in Collections:
공과대학 > 모바일정보통신공학과 > Articles
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